Snowplow



Sept. 18, 1928.

H. F. FLOWERS S NOWPLOW Filed May 25, 1923 3 Sheets-Sheet 3n ntoz $449)[b977 2 OWE/5&3

Sept. 18, 1928.

1,684,439 H. F. FLOWERS S NOWPLOW Filed May 23, 1923 3 Sheets-Sheet 2Mair Sept. 18, 1928. l.684,439

H. F. FLOWERS SNOWPLOW Filed May 23, 1923 3 Sheets-Sheet 3 gnveni'oz ififf V/Py i 0 07/ 2 owns-R's Patented Sept. 18, 1928.

UNITED STATES HENRY FOB! FLOWERS, OF FINDLAY, OHIO.

SNOWPLOW.

Application filed Kay 28,

The invention relates to new and useful improvements in snow plows, andmore particularly to a snow plow which is adapted to throw the snow fromthe center outwardly to both or to opposite sides of the track.

An object of the invention is to provide a supporting means for the snowplow of the above type which is simple and durable, and whereby the snowplow may be raised and lowered vertically as desired to properly pos1tion the same relative to the track or to the road.

A further object, of the invention is to provide a supporting means forthe snow plow of the above type, which permits the snow plow to bereadily detached from the movable support carrying the same.

A still further object of the inventlon is to provide a supporting meansfor a snow plow which includes parallel links and dev ces for holdin theplow and parallel links in predetermined positions.

These and other objects will in part be obvious and will in part behereinafter more fully disclosed.

In the drawings which show by way of ll- ]ustration one embodiment ofthe invention- Figure 1 is a side view of the device, the operatingmechanism being shown partly in elevation and partly in dotted lines;

Fig. 2 is a front view thereof, and

Fig. 3 is a plan view.

Referring to the drawings in detail, any desired type of vehicle such asa railway car or motor truck for street and highway use may be providedwith the invention. In the present instance, the sill 1 of the car isshown as provided with the usual slotted coupling 2 at the end thereof.The snow plow 3 is shown at the end of the car sill 1 in loweredposition immediately over the tracks (not shown). The shape of the plowmay vary, but is preferably designed as illustrate vbeing provided withcentrally arranged ridges 4 w ich incline backwardly from bottom to topwhere they curve forwardly and overhang as at 5, the side deflectors 6and 7 extend laterally beyond the width of the sill and are curled attop and bottom as at 8 and 9. The top curl 9 extends from the centraloverhang 5 outwardly so that snow which is thrown upwardly will beprojected outwardly and will not pass over the plow. The inner face ofthe plow is braced by suitable cross beams 10attached thereto bysuitable rivets.

Means is provided for mounting the plow 1928. Serial No. 840,902.

on the sill 1. To this end, the usual coupling 2 is utilized todetachably carry a support 11, preferably formed as a castin andprovided with slots and flanges 12 inter tting with the slots in thecoupling. A suitable pivot pin 13 provides the necessary quickdetachment.

The support 11 is formed with a c linder 14 which may be bolted theretoor ma e integral therewith, as desired, and in addition, the support 11is formed with a forward In or bearing 15 to which is pivoted a centralink 16, pivotally connected at its other end as at 17 to the lower innercentral portion of the plow, a suitable brace 18 being provided. 70

A second set of links 19 and 20 are rovided. These links are disposed inpara lelism to the link 16 so that a parallel linkage is formed. Thelinks 19 and 20 are preferably pivoted as at 21 to plates 22 and 23',riveted to the lower faces of the beams of sill 1 and to the plow at23'.

The cylinder 14 is preferably disposed in a forwardly inclined positionand is provided on its upper face with two upstanding brackets 2-1 and25 which are slotted to form a guideway for a cross head 26 in the shaof a bar extending laterally. This bar is pivotally connected to thepiston rod 27 of the fluid pressure cylinder. The outer ends of thecross head have pivotally connected thereto the depending arms 28 and28' which connect with the rods 29 and 30 in turn pivoted to the beams10 of the plow.

By means of the foregoing construction when the piston is raised, therods 29 and 30 raise and lower the plow, the parallel linkage insuringthe correct and uniform swinging of the plow toward and away from thetrack. Any suitable means may be provided for adjustably holding theplow in raised position. A simple means is afforded by providing thebrackets 24 and 25 with staggered holes 29 through whizh pins may bepassed immediately below the cross head. Manifestly any known connectionand control may be used for operating the fluid pressure cylinder. It isobvious that minorchanges may be made in the details of construction andthe arrangement of the parts, without departing from the spirit of theinvention as set forth in the appended claims. 1

Having thus described the invention, what I claim as new and desire tosecure by Letters-Patent, is-

1. In a device of the class described, the combination with a supportingmember of a vehicle, a snow plow, parallel links having pivotconnections to said member, said connections being spaced aparthorizontally, said links in the position for employment extending inparallelism forwardly and downwardly from said connections at asubstantial angle to the horizontal, and being pivoted to said snow plowso that the pressure of snow upon the face of said plow duringemployment will cause said plow to be forced downwardly toward theroadbed, and a fluid pressure mechanism having a cylinder fixcdlymounted on said member and having a piston and connections to exert apull on said plow upwardly and forwardly, substantially parallel to thedirection of movement of said plow as determined by said links, wherebyto raise the plow.

2. In a device of the class described, the combination with a supportingmember of a vehicle, a snow plow, parallel links jointed to said plowand said member at the respective sides and front of the vehicle, afluid pressure cylinder fixedly mounted on said member in the centralplane of the vehicle and having a piston rod actuated therefrom,

a crosshead pivoted on said rod, and links connecting the ends of saidcrosshead with the respective sides of said snow plow.

3. In a device of the class described, the combination with a supportingmember of a vehicle, a snow plow, parallel links jointed to said plowand said member at the respective sides and front of the vehicle, saidlinks extending downwardly and forwardly from their connections to saidmember, a fluid pressure cylinder fixedly mounted on said member in thecentral plane of the vehicle and having its axis inclined forwardly froma vertical line, a piston and rod cooperating with said cylinder, atcrosshead pivoted on said rod, links connecting the ends of saidcrosshead with the respective sides of said snow plow, a pair ofperforated bars carried fixedly with regard to said member and oppositethe arms of said crosshead, and

means engaging with said arms and in the perforations of said bars toprevent a lower ing of said snow plow.

in testimony whereof, I aflix my signature.

HENRY FORT FLOWERS.

